EP1188950A3 - Hydraulic Damper - Google Patents

Hydraulic Damper Download PDF

Info

Publication number
EP1188950A3
EP1188950A3 EP01122126A EP01122126A EP1188950A3 EP 1188950 A3 EP1188950 A3 EP 1188950A3 EP 01122126 A EP01122126 A EP 01122126A EP 01122126 A EP01122126 A EP 01122126A EP 1188950 A3 EP1188950 A3 EP 1188950A3
Authority
EP
European Patent Office
Prior art keywords
control rod
bypass passage
inner tube
actuator
partitioning member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01122126A
Other languages
German (de)
French (fr)
Other versions
EP1188950B1 (en
EP1188950A2 (en
Inventor
Takamasa Kamioka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KYB Corp
Original Assignee
Kayaba Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kayaba Industry Co Ltd filed Critical Kayaba Industry Co Ltd
Publication of EP1188950A2 publication Critical patent/EP1188950A2/en
Publication of EP1188950A3 publication Critical patent/EP1188950A3/en
Application granted granted Critical
Publication of EP1188950B1 publication Critical patent/EP1188950B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
    • F16F9/3482—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body the annular discs being incorporated within the valve or piston body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
    • F16F9/461—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall characterised by actuation means
    • F16F9/462—Rotary actuation means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
    • F16F9/464—Control of valve bias or pre-stress, e.g. electromagnetically

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid-Damping Devices (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)

Abstract

An inner tube (2) connected to a vehicle body is inserted such that it is free to extend and contract in an outer tube (1) joined to a vehicle shaft. A partitioning member (3) which divides an internal oil chamber at the end of the inner tube is provided, a damping valve (4) and a bypass passage (3d) parallel to this damping valve (4) are disposed in this partitioning member (3), a control rod (5) which opens and closes the bypass passage (3d) is provided, and an actuator (20) which controls this control rod (5) is provided in the inner tube (2). By operating the control rod (5) via the actuator (20) to open/close the bypass passage (3d), the damping force generated is varied.
EP01122126A 2000-09-19 2001-09-14 Hydraulic Damper Expired - Lifetime EP1188950B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000282830 2000-09-19
JP2000282830A JP2002089610A (en) 2000-09-19 2000-09-19 Hydraulic shock absorber

Publications (3)

Publication Number Publication Date
EP1188950A2 EP1188950A2 (en) 2002-03-20
EP1188950A3 true EP1188950A3 (en) 2003-03-05
EP1188950B1 EP1188950B1 (en) 2004-11-24

Family

ID=18767274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01122126A Expired - Lifetime EP1188950B1 (en) 2000-09-19 2001-09-14 Hydraulic Damper

Country Status (5)

Country Link
US (1) US6655510B2 (en)
EP (1) EP1188950B1 (en)
JP (1) JP2002089610A (en)
DE (1) DE60107344T2 (en)
TW (1) TW508326B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7011325B2 (en) * 2003-05-15 2006-03-14 Kinzler Frederick W Adjustable length suspension fork for a bicycle
US20060090973A1 (en) * 2004-10-28 2006-05-04 Michael Potas Valve system controlled by rate of pressure change
US7316409B2 (en) * 2005-01-14 2008-01-08 Spinner Industry Co., Ltd. Front fork of bicycle with buffer apparatus
JP4839332B2 (en) * 2008-03-19 2011-12-21 カヤバ工業株式会社 Buffer valve structure
DE102015204993B4 (en) * 2015-03-19 2021-11-18 Zf Friedrichshafen Ag Short damping valve device
CN106275212B (en) * 2015-05-20 2018-09-14 摩特动力工业股份有限公司 The suspension gear of wheel
EP3109502A3 (en) 2015-06-26 2017-04-12 Fox Factory, Inc. Compression piston
CN108577647B (en) * 2018-04-17 2024-03-22 海益（厦门）建材工业有限公司 Damper

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB556903A (en) * 1941-04-08 1943-10-27 Ribbesford Company Ltd Improvements in or relating to shock absorbers
GB2095361A (en) * 1981-03-04 1982-09-29 Bourcier Carbon Christian Baffles in shock absorbers
DE8437034U1 (en) * 1984-12-18 1988-02-11 Fichtel & Sachs Ag, 8720 Schweinfurt Vibration damper with variable damping force
DE4103356C1 (en) * 1991-02-05 1992-06-17 Boge Ag, 5208 Eitorf, De Hydraulic vibration damper with valved piston - has control body active face of several, angularly-set, individual faces
US5341905A (en) * 1993-07-14 1994-08-30 Kai Fa Industry Co., Ltd. Shock absorber with variable damping force
US5522483A (en) * 1993-04-08 1996-06-04 Stabilus Gmbh Shock absorber

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1028400A (en) * 1910-08-08 1912-06-04 Horace B Stanton Shock-absorber.
US3810659A (en) * 1973-02-02 1974-05-14 J Marcil Suspension damping device
DE3914297A1 (en) * 1989-04-29 1990-10-31 Boge Ag ADJUSTABLE VIBRATION DAMPER FOR MOTOR VEHICLES
GB8921962D0 (en) * 1989-09-28 1989-11-15 Browning Michael R S Variable suspension system
US5275264A (en) * 1992-09-25 1994-01-04 Calzolari Isella Setting shock absorber for cycles
JP3381961B2 (en) * 1993-03-18 2003-03-04 株式会社ショーワ Bicycle wheel suspension
DE4311625A1 (en) * 1993-04-08 1994-10-13 Stabilus Gmbh Pneumatic, hydraulic or hydropneumatic adjusting device
US5848675A (en) * 1996-10-03 1998-12-15 Answer Products, Inc. Damping apparatus for bicycle forks
US6105987A (en) * 1997-12-17 2000-08-22 Rockshox, Inc. Valve mechanism for damping system
US6360857B1 (en) * 1999-03-19 2002-03-26 Fox Factory, Inc. Damping adjuster for shock absorber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB556903A (en) * 1941-04-08 1943-10-27 Ribbesford Company Ltd Improvements in or relating to shock absorbers
GB2095361A (en) * 1981-03-04 1982-09-29 Bourcier Carbon Christian Baffles in shock absorbers
DE8437034U1 (en) * 1984-12-18 1988-02-11 Fichtel & Sachs Ag, 8720 Schweinfurt Vibration damper with variable damping force
DE4103356C1 (en) * 1991-02-05 1992-06-17 Boge Ag, 5208 Eitorf, De Hydraulic vibration damper with valved piston - has control body active face of several, angularly-set, individual faces
US5522483A (en) * 1993-04-08 1996-06-04 Stabilus Gmbh Shock absorber
US5341905A (en) * 1993-07-14 1994-08-30 Kai Fa Industry Co., Ltd. Shock absorber with variable damping force

Also Published As

Publication number Publication date
JP2002089610A (en) 2002-03-27
US20020033309A1 (en) 2002-03-21
TW508326B (en) 2002-11-01
EP1188950B1 (en) 2004-11-24
DE60107344T2 (en) 2005-05-12
DE60107344D1 (en) 2004-12-30
EP1188950A2 (en) 2002-03-20
US6655510B2 (en) 2003-12-02

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